CLEVELAND, Ohio -- Cleveland Cavaliers center Tristan Thompson has been fined $15,000 for making an "inappropriate gesture" toward a spectator during Monday's 99-97 win against the Brooklyn Nets.

According to a league release, the incident happened at the end of the game.

Thompson, one of the holdovers from the LeBron James era, has become the target of opposing hecklers this season, receiving the loudest boos during pregame introductions and hearing it throughout the game. During Monday's contest in Brooklyn, raucous Nets fans seated near the media section were even referencing Khloe Kardashian in their taunts.